Inverted lamp.



No. 506, 28. PATENTED DEC. 5, 1905.

0. REISS.

INVERTBD LAMP.

APPLICATION FILED mm. 1905.

' I 2 sums-sum 1.

UNITED STATES PATENT OFFICE.

I CARL REISS, OF BERLIN, GERMANY.

INVERTED LAMP- Specification of Letters Patent.

Application filed. FebruaryZ, 1905. Serial No. M3385.

Patented. Dec. 5, 1905.

lowing is an exact specification.

- My invention relates to improvements in inverted lamps, and more especially to such arrangements in which the mixin tube or tubes are surrounded by a receptac e open at the upper end. In the hitherto-known arrangements such receptacles had the urpose to keep away the burnt gases from t e mixmg-tubes and to effect a circulation of air.

downwardly from above.

Themain feature of my arrangement consists therein that the receptacle reaches above the mixing-tubes and is provided at its lower end with air-inlet openings, so that an aircurrent permanently asses 'from below through the interior of t e receptacle, there;

by cooling the mixing tube or'tubes and preventing too strong a heating of the latter. Fresh air is continuously drawn in into the interior of the receptacle and then flows upward.

In the accompanying drawings, Figures 1 and 2 show two side views of my invention. Fig. 3 is a longitudinal section, and Fig. fl is a I section on line A B. Figs. 5 and 6 show different forms of the receptacle used in my lamp. Figs. 7 and 8 show two further constructional forms of my invention.

In Fi s. 1 to 4, a, is a receptacle surrounding the mixmg-tubes of the burners d, which latter lead air-tight through the bottom e of the receptacle a, which receptacle is open at the top. I) re resents partitionchannels provided at t e receptacle a for leading away separately the combustion-gases. c is a gasconduit for feeding the burners. f represents exitopenings arranged in the upper part of the passages 11. 9 represents opemngs 1n the lowerpart of receptacle a, through which enters the fresh air. The upper end of the receptacle a is closed by a cover h, provided with openings '8, throughwhich the a1r leaves.

The operation is as follows: Thefresh air enters the openings g, feeds the mixmg-tubes of the burners 1, whereas the remaining a1r 1s heated in the receptacle a and leaves through the openings '6, thereby permanently sucking in a sufficient quantity of air and coolmgthe mixing-tubes and the gas-conduit c. The

gases of combustion enter from the surroundmg globe 0 and leave the exit-passages I) "through the openings jI Figs. 5 .and 6 show a hexagonal and octagonalreceptacle w,thereby enabling a putting in of a larger number of burners or mixing-tubes within the receptacle a, I) being again the partition-channels .for' the gasesof combustion.

the gases of combustion, arranged at the bottom 6 of the receptacle a, caps n being provided laterally to these openings m for defleeting the combustion-gases. Z is one of the openings at the side of the ca s n and ad mittin fresh air to the receptac e a. In all cases t e inlet-openings for the fresh air are so laterally arranged with regard to the exitopenings of the combustion-gases as to prevent the latter to enter the receptacle a.

' Having thus fully described the nature of my invention, what I desire to secure by Letters Patent of the United States is.-

1. In a lamp, an inverted gas-burner, a gas and air mixing device, a receptacle protecting the said mixing device against the combustion-gases having openings near its lower end and openings at its upper end serving as air inlet and outlet for producing an upward air circulation through the heating of the receptacle by hot combustion-gas, and channels adjacent to the receptaclefor tially as described.

2. In a lamp, an inverted gas-burner, agas and air mixing device, a receptacle pro tecting the said mixing device against the combustion gases having openings near its lower end and openings at its upper end serving as air inlet and outlet for 1producing an upward air circulation throug the heating of the receptacle by hot combustion-gas, channels adjacent to the receptacle for leading'away the combustion-gas, and air-tubes connectingthe lower openings of the recep leading away the combustion-gas substantacle through the said channels outward of the extent of the hot combustion-gas with the atmosphere, substantially as described.

3. In a lamp, an inverted gasburner, a gas and air mixing device, a receptacle protecting the said mixing device against the combustion-gases having openings near its lower end and openings at its upper end serv ing as air inlet and outlet for producing an upward air circulation through the heating of the receptacle by hot combustion-gas, a bottom plate at that receptacle with openings between said receptacle and the globe of the lamp for leading away the hot combustion-gas, and deflecting-caps rotecting the lower opening of the receptac e against the arising combustion-gas, substantially as described.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

CARL REISS. Witnesses:

HENRY HAsPER, WOLDEMAR HAUPT. 

